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497 lines
16 KiB
497 lines
16 KiB
/**************************************************************************** |
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* apps/nshlib/nsh.h |
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* |
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* Copyright (C) 2007-2011 Gregory Nutt. All rights reserved. |
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* Author: Gregory Nutt <spudmonkey@racsa.co.cr> |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* 3. Neither the name NuttX nor the names of its contributors may be |
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* used to endorse or promote products derived from this software |
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* without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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* POSSIBILITY OF SUCH DAMAGE. |
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* |
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****************************************************************************/ |
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#ifndef __APPS_NSHLIB_NSH_H |
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#define __APPS_NSHLIB_NSH_H |
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/**************************************************************************** |
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* Included Files |
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****************************************************************************/ |
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#include <nuttx/config.h> |
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#include <sys/types.h> |
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#include <stdint.h> |
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#include <stdbool.h> |
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#include <errno.h> |
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#ifdef CONFIG_NSH_CONSOLE |
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# include <stdio.h> |
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#endif |
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/**************************************************************************** |
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* Definitions |
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****************************************************************************/ |
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/* The telnetd interface and background commands require pthread support */ |
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#ifdef CONFIG_DISABLE_PTHREAD |
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# undef CONFIG_NSH_TELNET |
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# ifndef CONFIG_NSH_DISABLEBG |
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# define CONFIG_NSH_DISABLEBG 1 |
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# endif |
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#endif |
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/* Telnetd requires networking support */ |
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#ifndef CONFIG_NET |
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# undef CONFIG_NSH_TELNET |
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#endif |
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/* One front end must be defined */ |
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#if !defined(CONFIG_NSH_CONSOLE) && !defined(CONFIG_NSH_TELNET) |
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# error "No NSH front end defined" |
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#endif |
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/* Verify support for ROMFS /etc directory support options */ |
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#ifdef CONFIG_NSH_ROMFSETC |
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# ifdef CONFIG_DISABLE_MOUNTPOINT |
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# error "Mountpoint support is disabled" |
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# undef CONFIG_NSH_ROMFSETC |
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# endif |
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# if CONFIG_NFILE_DESCRIPTORS < 4 |
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# error "Not enough file descriptors" |
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# undef CONFIG_NSH_ROMFSETC |
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# endif |
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# ifndef CONFIG_FS_ROMFS |
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# error "ROMFS support not enabled" |
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# undef CONFIG_NSH_ROMFSETC |
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# endif |
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# ifndef CONFIG_NSH_ROMFSMOUNTPT |
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# define CONFIG_NSH_ROMFSMOUNTPT "/etc" |
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# endif |
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# ifdef CONFIG_NSH_INIT |
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# ifndef CONFIG_NSH_INITSCRIPT |
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# define CONFIG_NSH_INITSCRIPT "init.d/rcS" |
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# endif |
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# endif |
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# undef NSH_INITPATH |
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# define NSH_INITPATH CONFIG_NSH_ROMFSMOUNTPT "/" CONFIG_NSH_INITSCRIPT |
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# ifndef CONFIG_NSH_ROMFSDEVNO |
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# define CONFIG_NSH_ROMFSDEVNO 0 |
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# endif |
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# ifndef CONFIG_NSH_ROMFSSECTSIZE |
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# define CONFIG_NSH_ROMFSSECTSIZE 64 |
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# endif |
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# define NSECTORS(b) (((b)+CONFIG_NSH_ROMFSSECTSIZE-1)/CONFIG_NSH_ROMFSSECTSIZE) |
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# define STR_RAMDEVNO(m) #m |
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# define MKMOUNT_DEVNAME(m) "/dev/ram" STR_RAMDEVNO(m) |
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# define MOUNT_DEVNAME MKMOUNT_DEVNAME(CONFIG_NSH_ROMFSDEVNO) |
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#else |
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# undef CONFIG_NSH_ROMFSMOUNTPT |
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# undef CONFIG_NSH_INIT |
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# undef CONFIG_NSH_INITSCRIPT |
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# undef CONFIG_NSH_ROMFSDEVNO |
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# undef CONFIG_NSH_ROMFSSECTSIZE |
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#endif |
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/* This is the maximum number of arguments that will be accepted for a command */ |
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#define NSH_MAX_ARGUMENTS 6 |
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/* strerror() produces much nicer output but is, however, quite large and |
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* will only be used if CONFIG_NSH_STRERROR is defined. |
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*/ |
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#ifdef CONFIG_NSH_STRERROR |
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# define NSH_ERRNO strerror(errno) |
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# define NSH_ERRNO_OF(err) strerror(err) |
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#else |
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# define NSH_ERRNO (errno) |
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# define NSH_ERRNO_OF(err) (err) |
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#endif |
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/* Maximum size of one command line (telnet or serial) */ |
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#ifndef CONFIG_NSH_LINELEN |
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# define CONFIG_NSH_LINELEN 80 |
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#endif |
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/* The following two settings are used only in the telnetd interface */ |
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#ifndef CONFIG_NSH_IOBUFFER_SIZE |
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# define CONFIG_NSH_IOBUFFER_SIZE 512 |
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#endif |
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/* As threads are created to handle each request, a stack must be allocated |
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* for the thread. Use a default if the user provided no stacksize. |
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*/ |
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#ifndef CONFIG_NSH_STACKSIZE |
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# define CONFIG_NSH_STACKSIZE 4096 |
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#endif |
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/* The maximum number of nested if-then[-else]-fi sequences that |
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* are permissable. |
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*/ |
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#ifndef CONFIG_NSH_NESTDEPTH |
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# define CONFIG_NSH_NESTDEPTH 3 |
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#endif |
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/* Define to enable dumping of all input/output buffers */ |
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#undef CONFIG_NSH_TELNETD_DUMPBUFFER |
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#undef CONFIG_NSH_FULLPATH |
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/* Make sure that the home directory is defined */ |
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#ifndef CONFIG_LIB_HOMEDIR |
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# define CONFIG_LIB_HOMEDIR "/" |
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#endif |
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/* Method access macros */ |
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#define nsh_clone(v) (v)->clone(v) |
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#define nsh_release(v) (v)->release(v) |
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#define nsh_write(v,b,n) (v)->write(v,b,n) |
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#define nsh_linebuffer(v) (v)->linebuffer(v) |
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#define nsh_redirect(v,f,s) (v)->redirect(v,f,s) |
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#define nsh_undirect(v,s) (v)->undirect(v,s) |
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#define nsh_exit(v) (v)->exit(v) |
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#ifdef CONFIG_CPP_HAVE_VARARGS |
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# define nsh_output(v, fmt...) (v)->output(v, ##fmt) |
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#else |
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# define nsh_output vtbl->output |
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#endif |
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/* Size of info to be saved in call to nsh_redirect */ |
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#define SAVE_SIZE (sizeof(int) + sizeof(FILE*) + sizeof(bool)) |
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/* Stubs used when working directory is not supported */ |
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#if CONFIG_NFILE_DESCRIPTORS <= 0 || defined(CONFIG_DISABLE_ENVIRON) |
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# define nsh_getfullpath(v,p) ((char*)(p)) |
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# define nsh_freefullpath(p) |
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#endif |
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/**************************************************************************** |
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* Public Types |
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****************************************************************************/ |
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enum nsh_parser_e |
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{ |
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NSH_PARSER_NORMAL = 0, |
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NSH_PARSER_IF, |
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NSH_PARSER_THEN, |
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NSH_PARSER_ELSE |
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}; |
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struct nsh_state_s |
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{ |
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uint8_t ns_ifcond : 1; /* Value of command in 'if' statement */ |
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uint8_t ns_disabled : 1; /* TRUE: Unconditionally disabled */ |
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uint8_t ns_unused : 4; |
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uint8_t ns_state : 2; /* Parser state (see enum nsh_parser_e) */ |
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}; |
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struct nsh_parser_s |
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{ |
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#ifndef CONFIG_NSH_DISABLEBG |
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bool np_bg; /* true: The last command executed in background */ |
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#endif |
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bool np_redirect; /* true: Output from the last command was re-directed */ |
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bool np_fail; /* true: The last command failed */ |
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#ifndef CONFIG_NSH_DISABLESCRIPT |
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uint8_t np_ndx; /* Current index into np_st[] */ |
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#endif |
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#ifndef CONFIG_NSH_DISABLEBG |
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int np_nice; /* "nice" value applied to last background cmd */ |
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#endif |
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/* This is a stack of parser state information. It supports nested |
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* execution of commands that span multiple lines (like if-then-else-fi) |
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*/ |
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#ifndef CONFIG_NSH_DISABLESCRIPT |
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struct nsh_state_s np_st[CONFIG_NSH_NESTDEPTH]; |
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#endif |
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}; |
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struct nsh_vtbl_s |
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{ |
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/* This function pointers are "hooks" into the front end logic to |
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* handle things like output of command results, redirection, etc. |
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* -- all of which must be done in a way that is unique to the nature |
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* of the front end. |
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*/ |
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#ifndef CONFIG_NSH_DISABLEBG |
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FAR struct nsh_vtbl_s *(*clone)(FAR struct nsh_vtbl_s *vtbl); |
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void (*addref)(FAR struct nsh_vtbl_s *vtbl); |
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void (*release)(FAR struct nsh_vtbl_s *vtbl); |
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#endif |
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ssize_t (*write)(FAR struct nsh_vtbl_s *vtbl, FAR const void *buffer, size_t nbytes); |
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int (*output)(FAR struct nsh_vtbl_s *vtbl, const char *fmt, ...); |
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FAR char *(*linebuffer)(FAR struct nsh_vtbl_s *vtbl); |
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void (*redirect)(FAR struct nsh_vtbl_s *vtbl, int fd, FAR uint8_t *save); |
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void (*undirect)(FAR struct nsh_vtbl_s *vtbl, FAR uint8_t *save); |
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void (*exit)(FAR struct nsh_vtbl_s *vtbl); |
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/* Parser state data */ |
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struct nsh_parser_s np; |
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}; |
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typedef int (*cmd_t)(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv); |
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/**************************************************************************** |
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* Public Data |
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****************************************************************************/ |
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extern const char g_nshgreeting[]; |
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extern const char g_nshprompt[]; |
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extern const char g_nshsyntax[]; |
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extern const char g_fmtargrequired[]; |
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extern const char g_fmtarginvalid[]; |
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extern const char g_fmtargrange[]; |
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extern const char g_fmtcmdnotfound[]; |
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extern const char g_fmtnosuch[]; |
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extern const char g_fmttoomanyargs[]; |
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extern const char g_fmtdeepnesting[]; |
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extern const char g_fmtcontext[]; |
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extern const char g_fmtcmdfailed[]; |
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extern const char g_fmtcmdoutofmemory[]; |
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extern const char g_fmtinternalerror[]; |
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#ifndef CONFIG_DISABLE_SIGNALS |
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extern const char g_fmtsignalrecvd[]; |
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#endif |
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/**************************************************************************** |
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* Public Function Prototypes |
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****************************************************************************/ |
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/* Initialization */ |
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#ifdef CONFIG_NSH_ROMFSETC |
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extern int nsh_romfsetc(void); |
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#else |
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# define nsh_romfsetc() (-ENOSYS) |
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#endif |
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#ifdef CONFIG_NET |
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extern int nsh_netinit(void); |
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#else |
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# define nsh_netinit() (-ENOSYS) |
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#endif |
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#if CONFIG_NFILE_DESCRIPTORS > 0 && CONFIG_NFILE_STREAMS > 0 && !defined(CONFIG_NSH_DISABLESCRIPT) |
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extern int nsh_script(FAR struct nsh_vtbl_s *vtbl, const char *cmd, const char *path); |
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#endif |
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/* Architecture-specific initialization */ |
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#ifdef CONFIG_NSH_ARCHINIT |
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extern int nsh_archinitialize(void); |
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#else |
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# define nsh_archinitialize() (-ENOSYS) |
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#endif |
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/* Message handler */ |
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extern int nsh_parse(FAR struct nsh_vtbl_s *vtbl, char *cmdline); |
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/* Application interface */ |
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#ifdef CONFIG_NSH_BUILTIN_APPS |
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extern int nsh_execapp(FAR struct nsh_vtbl_s *vtbl, FAR const char *cmd, |
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FAR char **argv); |
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#endif |
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/* Working directory support */ |
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#if CONFIG_NFILE_DESCRIPTORS > 0 && !defined(CONFIG_DISABLE_ENVIRON) |
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extern FAR const char *nsh_getcwd(void); |
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extern char *nsh_getfullpath(FAR struct nsh_vtbl_s *vtbl, const char *relpath); |
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extern void nsh_freefullpath(char *relpath); |
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#endif |
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/* Debug */ |
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extern void nsh_dumpbuffer(FAR struct nsh_vtbl_s *vtbl, const char *msg, |
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const uint8_t *buffer, ssize_t nbytes); |
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/* Shell command handlers */ |
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#ifndef CONFIG_NSH_DISABLE_ECHO |
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extern int cmd_echo(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv); |
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#endif |
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#ifndef CONFIG_NSH_DISABLE_EXEC |
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extern int cmd_exec(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv); |
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#endif |
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#ifndef CONFIG_NSH_DISABLE_MB |
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extern int cmd_mb(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv); |
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#endif |
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#ifndef CONFIG_NSH_DISABLE_MH |
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extern int cmd_mh(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv); |
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#endif |
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#ifndef CONFIG_NSH_DISABLE_MW |
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extern int cmd_mw(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv); |
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#endif |
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#ifndef CONFIG_NSH_DISABLE_FREE |
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extern int cmd_free(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv); |
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#endif |
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#ifndef CONFIG_NSH_DISABLE_PS |
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extern int cmd_ps(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv); |
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#endif |
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#ifndef CONFIG_NSH_DISABLE_XD |
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extern int cmd_xd(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv); |
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#endif |
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#if !defined(CONFIG_NSH_DISABLESCRIPT) && !defined(CONFIG_NSH_DISABLE_TEST) |
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extern int cmd_test(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv); |
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extern int cmd_lbracket(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv); |
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#endif |
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#ifndef CONFIG_DISABLE_CLOCK |
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# if defined (CONFIG_RTC) && !defined(CONFIG_NSH_DISABLE_DATE) |
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extern int cmd_date(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv); |
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# endif |
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#endif |
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#if CONFIG_NFILE_DESCRIPTORS > 0 |
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# ifndef CONFIG_NSH_DISABLE_CAT |
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extern int cmd_cat(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv); |
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# endif |
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# ifndef CONFIG_NSH_DISABLE_CP |
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extern int cmd_cp(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv); |
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# endif |
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# ifndef CONFIG_NSH_DISABLE_DD |
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extern int cmd_dd(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv); |
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# endif |
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# ifndef CONFIG_NSH_DISABLE_LS |
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extern int cmd_ls(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv); |
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# endif |
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# if CONFIG_NFILE_STREAMS > 0 && !defined(CONFIG_NSH_DISABLESCRIPT) |
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# ifndef CONFIG_NSH_DISABLE_SH |
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extern int cmd_sh(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv); |
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# endif |
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# endif /* CONFIG_NFILE_STREAMS && !CONFIG_NSH_DISABLESCRIPT */ |
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# ifndef CONFIG_DISABLE_MOUNTPOINT |
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# ifndef CONFIG_NSH_DISABLE_LOSETUP |
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extern int cmd_losetup(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv); |
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# endif |
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# ifndef CONFIG_NSH_DISABLE_MKFIFO |
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extern int cmd_mkfifo(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv); |
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# endif |
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# ifdef CONFIG_FS_READABLE |
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# ifndef CONFIG_NSH_DISABLE_MOUNT |
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extern int cmd_mount(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv); |
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# endif |
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# ifndef CONFIG_NSH_DISABLE_UMOUNT |
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extern int cmd_umount(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv); |
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# endif |
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# ifdef CONFIG_FS_WRITABLE |
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# ifndef CONFIG_NSH_DISABLE_MKDIR |
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extern int cmd_mkdir(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv); |
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# endif |
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# ifndef CONFIG_NSH_DISABLE_MKRD |
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extern int cmd_mkrd(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv); |
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# endif |
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# ifndef CONFIG_NSH_DISABLE_RM |
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extern int cmd_rm(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv); |
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# endif |
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# ifndef CONFIG_NSH_DISABLE_RMDIR |
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extern int cmd_rmdir(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv); |
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# endif |
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# endif /* CONFIG_FS_WRITABLE */ |
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# endif /* CONFIG_FS_READABLE */ |
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# ifdef CONFIG_FS_FAT |
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# ifndef CONFIG_NSH_DISABLE_MKFATFS |
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extern int cmd_mkfatfs(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv); |
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# endif |
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# endif /* CONFIG_FS_FAT */ |
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# endif /* !CONFIG_DISABLE_MOUNTPOINT */ |
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# if !defined(CONFIG_DISABLE_ENVIRON) |
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# ifndef CONFIG_NSH_DISABLE_CD |
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extern int cmd_cd(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv); |
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# endif |
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# ifndef CONFIG_NSH_DISABLE_PWD |
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extern int cmd_pwd(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv); |
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# endif |
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# endif /* !CONFIG_DISABLE_MOUNTPOINT */ |
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#endif /* CONFIG_NFILE_DESCRIPTORS */ |
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#if defined(CONFIG_NET) |
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# ifndef CONFIG_NSH_DISABLE_IFCONFIG |
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extern int cmd_ifconfig(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv); |
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# endif |
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#if defined(CONFIG_NET_UDP) && CONFIG_NFILE_DESCRIPTORS > 0 |
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# ifndef CONFIG_NSH_DISABLE_GET |
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extern int cmd_get(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv); |
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# endif |
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# ifndef CONFIG_NSH_DISABLE_PUT |
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extern int cmd_put(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv); |
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# endif |
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#endif |
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#if defined(CONFIG_NET_TCP) && CONFIG_NFILE_DESCRIPTORS > 0 |
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# ifndef CONFIG_NSH_DISABLE_WGET |
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extern int cmd_wget(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv); |
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# endif |
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#endif |
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#if defined(CONFIG_NET_ICMP) && defined(CONFIG_NET_ICMP_PING) && \ |
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!defined(CONFIG_DISABLE_CLOCK) && !defined(CONFIG_DISABLE_SIGNALS) |
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# ifndef CONFIG_NSH_DISABLE_PING |
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extern int cmd_ping(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv); |
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# endif |
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#endif |
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#endif |
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#ifndef CONFIG_DISABLE_ENVIRON |
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# ifndef CONFIG_NSH_DISABLE_SET |
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extern int cmd_set(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv); |
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# endif |
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# ifndef CONFIG_NSH_DISABLE_UNSET |
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extern int cmd_unset(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv); |
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# endif |
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#endif /* CONFIG_DISABLE_ENVIRON */ |
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#ifndef CONFIG_DISABLE_SIGNALS |
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# ifndef CONFIG_NSH_DISABLE_KILL |
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extern int cmd_kill(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv); |
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# endif |
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# ifndef CONFIG_NSH_DISABLE_SLEEP |
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extern int cmd_sleep(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv); |
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# endif |
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# ifndef CONFIG_NSH_DISABLE_USLEEP |
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extern int cmd_usleep(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv); |
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# endif |
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#endif /* CONFIG_DISABLE_SIGNALS */ |
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#endif /* __APPS_NSHLIB_NSH_H */
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